var chap_array = new Array(
    ["12 - Muddy and Clay",'12/01'],

    ["11 - Reunion",'11/01'],

    ["10 - Adamas",'10/01'],

    ["9 - Ruby's Decision",'9/01'],

    ["8 - Introducing Ruby",'8/01'],

    ["7 - An Unexpected Meeting",'7/01'],

    ["6 - The Making of Jasper's Wife",'6/01'],

    ["5 - Jasper's Search for a Wife",'5/01'],

    ["4 - Jasper's Woman Hunt",'4/01'],

    ["3 - Clay's Decision",'3/01'],

    ["2 - Cactus Cutle Clamor",'2/01'],

    ["1 - Clay and Muddy",'1/01']
);
for (var i=0; i<chap_array.length; i++) {
    document.getElementById('id_chapter_1').options[i] = new Option(chap_array[i][0],chap_array[i][1]);
    if (document.getElementById('id_chapter_2')) {
        document.getElementById('id_chapter_2').options[i] = new Option(chap_array[i][0],chap_array[i][1]);
    }
}